diff --git a/DataStorage/Session/SessionAbstract.php b/DataStorage/Session/SessionAbstract.php
index 7deed9d2e..7a8a6e127 100644
--- a/DataStorage/Session/SessionAbstract.php
+++ b/DataStorage/Session/SessionAbstract.php
@@ -43,7 +43,7 @@ abstract class SessionAbstract
      *
      * @since 1.0.0
      */
-    public abstract function get(string $key) : mixed;
+    abstract public function get(string $key) : mixed;
 
     /**
      * Store session value by key.
@@ -56,7 +56,7 @@ abstract class SessionAbstract
      *
      * @since 1.0.0
      */
-    public abstract function set(string $key, mixed $value, bool $overwrite = false) : bool;
+    abstract public function set(string $key, mixed $value, bool $overwrite = false) : bool;
 
     /**
      * Remove value from session by key.
@@ -67,7 +67,7 @@ abstract class SessionAbstract
      *
      * @since 1.0.0
      */
-    public abstract function remove(string $key) : bool;
+    abstract public function remove(string $key) : bool;
 
     /**
      * Save session.
@@ -76,14 +76,14 @@ abstract class SessionAbstract
      *
      * @since 1.0.0
      */
-    public abstract function save() : bool;
+    abstract public function save() : bool;
 
     /**
      * @return string
      *
      * @since 1.0.0
      */
-    public abstract function getSID() : string;
+    abstract public function getSID() : string;
 
     /**
      * @param string $sid Session id
@@ -92,7 +92,7 @@ abstract class SessionAbstract
      *
      * @since 1.0.0
      */
-    public abstract function setSID(string $sid) : void;
+    abstract public function setSID(string $sid) : void;
 
     /**
      * Lock session from further adjustments.
@@ -101,5 +101,5 @@ abstract class SessionAbstract
      *
      * @since 1.0.0
      */
-    public abstract function lock() : void;
+    abstract public function lock() : void;
 }
diff --git a/Math/Geometry/ConvexHull/GrahamScan.php b/Math/Geometry/ConvexHull/GrahamScan.php
index 639122fcc..5c68c3341 100644
--- a/Math/Geometry/ConvexHull/GrahamScan.php
+++ b/Math/Geometry/ConvexHull/GrahamScan.php
@@ -50,6 +50,7 @@ final class GrahamScan
         }
 
         $min = 1;
+        $points = \array_merge([['x' => 0.0, 'y' => 0.0]], $points);
 
         for ($i = 2; $i < $n; ++$i) {
             if ($points[$i]['y'] < $points[$min]['y']
diff --git a/Utils/IO/Spreadsheet/SpreadsheetDatabaseMapper.php b/Utils/IO/Spreadsheet/SpreadsheetDatabaseMapper.php
index e3d41d7c1..a34cc0d1e 100755
--- a/Utils/IO/Spreadsheet/SpreadsheetDatabaseMapper.php
+++ b/Utils/IO/Spreadsheet/SpreadsheetDatabaseMapper.php
@@ -143,7 +143,7 @@ final class SpreadsheetDatabaseMapper implements IODatabaseMapper
             $sheet->setActiveSheetIndex($i);
 
             $workSheet = $sheet->getSheet($i);
-            $table     = \strtr(empty($table) ? $workSheet->getTitle() : $table, ' ', '_');
+            $tableName = \strtr(empty($table) ? $workSheet->getTitle() : $table, ' ', '_');
             $titles    = [];
 
             // get column titles
@@ -172,7 +172,7 @@ final class SpreadsheetDatabaseMapper implements IODatabaseMapper
 
                 // insert data
                 $query = new Builder($this->con);
-                $query->insert(...$titles)->into($table);
+                $query->insert(...$titles)->into($tableName);
 
                 while ($hasData = !empty($workSheet->getCell('A' . $line)->getCalculatedValue())) {
                     $cells = [];
@@ -285,7 +285,7 @@ final class SpreadsheetDatabaseMapper implements IODatabaseMapper
             $sheet->setActiveSheetIndex($i);
 
             $workSheet = $sheet->getSheet($i);
-            $table     = \strtr(empty($table) ? $workSheet->getTitle() : $table, ' ', '_');
+            $tableName = \strtr(empty($table) ? $workSheet->getTitle() : $table, ' ', '_');
             $titles    = [];
 
             // get column titles
@@ -313,7 +313,7 @@ final class SpreadsheetDatabaseMapper implements IODatabaseMapper
             $line = 2;
             while (!empty($workSheet->getCell('A' . $line)->getCalculatedValue())) {
                 $query = new Builder($this->con);
-                $query->update($table);
+                $query->update($tableName);
 
                 for ($j = 2; $j <= $columns; ++$j) {
                     $query->sets((string) $titles[$j - 2], $workSheet->getCell(StringUtils::intToAlphabet($j) . $line)->getCalculatedValue());
diff --git a/Utils/TaskSchedule/TaskAbstract.php b/Utils/TaskSchedule/TaskAbstract.php
index 52dc103df..2005aa75e 100755
--- a/Utils/TaskSchedule/TaskAbstract.php
+++ b/Utils/TaskSchedule/TaskAbstract.php
@@ -83,7 +83,7 @@ abstract class TaskAbstract
     /**
      * Constructor
      *
-     * @param string $name Id/name of the task (on linux the same as the executable script)
+     * @param string $name Id/name of the task (on Linux the same as the executable script)
      * @param string $cmd  Command to create the task
      *
      * @since 1.0.0
@@ -251,7 +251,7 @@ abstract class TaskAbstract
     /**
      * Create task based on job data
      *
-     * @param string[] $jobData Raw job data
+     * @param array<string|null> $jobData Raw job data
      *
      * @return TaskAbstract
      *
diff --git a/tests/Math/Geometry/ConvexHull/GrahamScanTest.php b/tests/Math/Geometry/ConvexHull/GrahamScanTest.php
index c42ee330c..5d938f0b3 100644
--- a/tests/Math/Geometry/ConvexHull/GrahamScanTest.php
+++ b/tests/Math/Geometry/ConvexHull/GrahamScanTest.php
@@ -14,6 +14,8 @@ declare(strict_types=1);
 
 namespace phpOMS\tests\Math\Geometry\ConvexHull;
 
+include_once __DIR__ . '/../../../Autoloader.php';
+
 use phpOMS\Math\Geometry\ConvexHull\GrahamScan;
 
 /**
diff --git a/tests/Utils/IO/Spreadsheet/SpreadsheetDatabaseMapperTest.php b/tests/Utils/IO/Spreadsheet/SpreadsheetDatabaseMapperTest.php
index 363f67e0a..cc925f178 100755
--- a/tests/Utils/IO/Spreadsheet/SpreadsheetDatabaseMapperTest.php
+++ b/tests/Utils/IO/Spreadsheet/SpreadsheetDatabaseMapperTest.php
@@ -14,6 +14,8 @@ declare(strict_types=1);
 
 namespace phpOMS\tests\Utils\IO\Spreadsheet;
 
+include_once __DIR__ . '/../../../Autoloader.php';
+
 use phpOMS\DataStorage\Database\Connection\SQLiteConnection;
 use phpOMS\DataStorage\Database\Query\Builder;
 use phpOMS\tests\Autoloader;
@@ -73,10 +75,11 @@ final class SpreadsheetDatabaseMapperTest extends \PHPUnit\Framework\TestCase
     public function testInsertOds() : void
     {
         $mapper = new SpreadsheetDatabaseMapper($this->sqlite);
-        $mapper->import(__DIR__ . '/insert.ods', 'insert_1');
+        $mapper->import(__DIR__ . '/insert.ods');
 
         $builder = new Builder($this->sqlite, true);
         $data    = $builder->select('insert_1.*')->from('insert_1')->execute()?->fetchAll(\PDO::FETCH_ASSOC) ?? [];
+
         self::assertEquals(
             [
                 ['id' => 1, 'int' => 2, 'decimal' => 2.0, 'bool' => 1, 'varchar' => 'Line 1', 'datetime' => '43631'],
@@ -105,7 +108,7 @@ final class SpreadsheetDatabaseMapperTest extends \PHPUnit\Framework\TestCase
     public function testInsertXls() : void
     {
         $mapper = new SpreadsheetDatabaseMapper($this->sqlite);
-        $mapper->import(__DIR__ . '/insert.xls', 'insert_1');
+        $mapper->import(__DIR__ . '/insert.xls');
 
         $builder = new Builder($this->sqlite, true);
         $data    = $builder->select('insert_1.*')->from('insert_1')->execute()?->fetchAll(\PDO::FETCH_ASSOC) ?? [];
@@ -137,7 +140,7 @@ final class SpreadsheetDatabaseMapperTest extends \PHPUnit\Framework\TestCase
     public function testInsertXlsx() : void
     {
         $mapper = new SpreadsheetDatabaseMapper($this->sqlite);
-        $mapper->import(__DIR__ . '/insert.xlsx', 'insert_1');
+        $mapper->import(__DIR__ . '/insert.xlsx');
 
         $builder = new Builder($this->sqlite, true);
         $data    = $builder->select('insert_1.*')->from('insert_1')->execute()?->fetchAll(\PDO::FETCH_ASSOC) ?? [];
@@ -169,7 +172,7 @@ final class SpreadsheetDatabaseMapperTest extends \PHPUnit\Framework\TestCase
     public function testUpdateOds() : void
     {
         $mapper = new SpreadsheetDatabaseMapper($this->sqlite);
-        $mapper->import(__DIR__ . '/insert.ods', 'insert_1');
+        $mapper->import(__DIR__ . '/insert.ods');
 
         $builder = new Builder($this->sqlite, true);
         $data    = $builder->select('insert_1.*')->from('insert_1')->execute()?->fetchAll(\PDO::FETCH_ASSOC) ?? [];
@@ -196,7 +199,7 @@ final class SpreadsheetDatabaseMapperTest extends \PHPUnit\Framework\TestCase
         );
 
         $mapper = new SpreadsheetDatabaseMapper($this->sqlite);
-        $mapper->update(__DIR__ . '/update.ods', 'insert_1');
+        $mapper->update(__DIR__ . '/update.ods');
 
         $builder = new Builder($this->sqlite, true);
         $data    = $builder->select('insert_1.*')->from('insert_1')->execute()?->fetchAll(\PDO::FETCH_ASSOC) ?? [];
@@ -228,7 +231,7 @@ final class SpreadsheetDatabaseMapperTest extends \PHPUnit\Framework\TestCase
     public function testUpdateXls() : void
     {
         $mapper = new SpreadsheetDatabaseMapper($this->sqlite);
-        $mapper->import(__DIR__ . '/insert.xls', 'insert_1');
+        $mapper->import(__DIR__ . '/insert.xls');
 
         $builder = new Builder($this->sqlite, true);
         $data    = $builder->select('insert_1.*')->from('insert_1')->execute()?->fetchAll(\PDO::FETCH_ASSOC) ?? [];
@@ -255,7 +258,7 @@ final class SpreadsheetDatabaseMapperTest extends \PHPUnit\Framework\TestCase
         );
 
         $mapper = new SpreadsheetDatabaseMapper($this->sqlite);
-        $mapper->update(__DIR__ . '/update.xls', 'insert_1');
+        $mapper->update(__DIR__ . '/update.xls');
 
         $builder = new Builder($this->sqlite, true);
         $data    = $builder->select('insert_1.*')->from('insert_1')->execute()?->fetchAll(\PDO::FETCH_ASSOC) ?? [];
@@ -287,7 +290,7 @@ final class SpreadsheetDatabaseMapperTest extends \PHPUnit\Framework\TestCase
     public function testUpdateXlsx() : void
     {
         $mapper = new SpreadsheetDatabaseMapper($this->sqlite);
-        $mapper->import(__DIR__ . '/insert.xlsx', 'insert_1');
+        $mapper->import(__DIR__ . '/insert.xlsx');
 
         $builder = new Builder($this->sqlite, true);
         $data    = $builder->select('insert_1.*')->from('insert_1')->execute()?->fetchAll(\PDO::FETCH_ASSOC) ?? [];
@@ -314,7 +317,7 @@ final class SpreadsheetDatabaseMapperTest extends \PHPUnit\Framework\TestCase
         );
 
         $mapper = new SpreadsheetDatabaseMapper($this->sqlite);
-        $mapper->update(__DIR__ . '/update.xlsx', 'insert_1');
+        $mapper->update(__DIR__ . '/update.xlsx');
 
         $builder = new Builder($this->sqlite, true);
         $data    = $builder->select('insert_1.*')->from('insert_1')->execute()?->fetchAll(\PDO::FETCH_ASSOC) ?? [];
@@ -350,7 +353,7 @@ final class SpreadsheetDatabaseMapperTest extends \PHPUnit\Framework\TestCase
         }
 
         $mapper = new SpreadsheetDatabaseMapper($this->sqlite);
-        $mapper->import(__DIR__ . '/insert.ods', 'insert_1');
+        $mapper->import(__DIR__ . '/insert.ods');
 
         $builder = new Builder($this->sqlite, true);
         $data    = $builder->select('insert_1.*')->from('insert_1')->execute()?->fetchAll(\PDO::FETCH_ASSOC) ?? [];
@@ -399,7 +402,7 @@ final class SpreadsheetDatabaseMapperTest extends \PHPUnit\Framework\TestCase
         }
 
         $mapper = new SpreadsheetDatabaseMapper($this->sqlite);
-        $mapper->import(__DIR__ . '/insert.xls', 'insert_1');
+        $mapper->import(__DIR__ . '/insert.xls');
 
         $builder = new Builder($this->sqlite, true);
         $data    = $builder->select('insert_1.*')->from('insert_1')->execute()?->fetchAll(\PDO::FETCH_ASSOC) ?? [];
@@ -448,7 +451,7 @@ final class SpreadsheetDatabaseMapperTest extends \PHPUnit\Framework\TestCase
         }
 
         $mapper = new SpreadsheetDatabaseMapper($this->sqlite);
-        $mapper->import(__DIR__ . '/insert.xlsx', 'insert_1');
+        $mapper->import(__DIR__ . '/insert.xlsx');
 
         $builder = new Builder($this->sqlite, true);
         $data    = $builder->select('insert_1.*')->from('insert_1')->execute()?->fetchAll(\PDO::FETCH_ASSOC) ?? [];